Python random data generation Exercise with solutions

This Python exercise will help you practice random data generation techniques. This exercise focuses on generating random numbers, choices, and samples using the random module and secrets module.

Also Read: Python Random Data Generation Quiz

This exercise includes:

There are 10 coding questions.
The solution is provided at the end of each question.
As you complete each question, you will become more familiar with random data generation techniques in Python

Refer to the following tutorials to solve the exercise.

Use Online Code Editor to solve each question.

Exercise 1: Generate 3 Random Integers
Exercise 2: Random Lottery Pick
Exercise 3: Generate 6 digit Random Secure OTP
Exercise 4: Pick Random Character
Exercise 5: Generate Random String
Exercise 6: Generate Random Password
Exercise 7: Calculate Multiplication
Exercise 8: Generate Random Token and URL
Exercise 9: Dice Roll
Exercise 10: Generate Random Date

Exercise 1: Generate 3 Random Integers

Write a code to generate 3 random integers between 100 and 999 which is divisible by 5

Reference article for help: Python get a random number within a range

Show Solution

import random

print("Generating 3 random integer number between 100 and 999 divisible by 5")
for num in range(3):
    print(random.randrange(100, 999, 5), end=', ')Code language: Python (python)

Exercise 2: Random Lottery Pick

Write a code to generate 100 random lottery tickets and pick two lucky tickets from it as a winner.

Note you must adhere to the following conditions:

The lottery number must be 10 digits long.
All 100 ticket number must be unique.

+ Hint

Generate a random list of 1000 numbers using randrange() and then use the sample() method to pick lucky 2 tickets.

Show Solution

import random

lottery_tickets_list = []
print("creating 100 random lottery tickets")
# to get 100 ticket
for i in range(100):
    # ticket number must be 10 digit (1000000000, 9999999999)
    lottery_tickets_list.append(random.randrange(1000000000, 9999999999))
# pick 2 luck tickets
winners = random.sample(lottery_tickets_list, 2)
print("Lucky 2 lottery tickets are", winners)Code language: Python (python)

Exercise 3: Generate 6 digit Random Secure OTP

Reference article for help:

Show Solution

import secrets

#Getting systemRandom class instance out of secrets module
secretsGenerator = secrets.SystemRandom()

print("Generating 6 digit random OTP")
otp = secretsGenerator.randrange(100000, 999999)

print("Secure random OTP is ", otp)Code language: Python (python)

Exercise 4: Pick Random Character

Write a code to select a random character from a given string name = 'pynative'.

Reference article for help: random.choice()

Show Solution

import random

name = 'pynative'
char = random.choice(name)
print("random char is ", char)Code language: Python (python)

Exercise 5: Generate Random String

Write a code to generate random string of length 5.

Note: String must be the combination of the UPPER case and lower case letters only. No numbers and a special symbol.

Reference article for help: Generate random String in Python.

Show Solution

import random
import string

def randomString(stringLength):
    """Generate a random string of 5 charcters"""
    letters = string.ascii_letters
    return ''.join(random.choice(letters) for i in range(stringLength))

print ("Random String is ", randomString(5) )Code language: Python (python)

Exercise 6: Generate Random Password

Write a code to generate a random password which meets the following conditions.

Password length must be 10 characters long.
It must contain at least 2 upper case letters, 1 digit, and 1 special symbol.

Reference article for help: Generate random String and Password in Python

Show Solution

import random
import string

def randomPassword():
    randomSource = string.ascii_letters + string.digits + string.punctuation
    password = random.sample(randomSource, 6)
    password += random.sample(string.ascii_uppercase, 2)
    password += random.choice(string.digits)
    password += random.choice(string.punctuation)

    passwordList = list(password)
    random.SystemRandom().shuffle(passwordList)
    password = ''.join(passwordList)
    return password

print ("Password is ", randomPassword())Code language: Python (python)

Exercise 7: Calculate Multiplication

Write a code to calculate multiplication of two random float numbers.

Note:

First random float number must be between 0.1 and 1
Second random float number must be between 9.5 and 99.5

Reference article for help: Generate a random float number between a float range

Show Solution

import random

num1  = random.random()
print("First Random float is ", num1)
num2 = random.uniform(9.5, 99.5)
print("Second Random float is ", num1)

num3 = num1 * num2
print("Multiplication is ", num3)Code language: Python (python)

Exercise 8: Generate Random Token and URL

Write a code to generate random secure token of 64 bytes and random URL.

Reference article for help: Python secrets module to generate a secure token and URL

Show Solution

import secrets

print("Random secure Hexadecimal token is ", secrets.token_hex(64))
print("Random secure URL is ", secrets.token_urlsafe(64))Code language: Python (python)

Exercise 9: Dice Roll

Write a code to roll dice in such a way that every time you get the same number.

Dice has 6 numbers (from 1 to 6). Roll dice in such a way that every time you must get the same output number. do this 5 times.

Given:

import random

dice = [1, 2, 3, 4, 5, 6]Code language: Python (python)

Reference article for help:

Show Solution

import random

dice = [1, 2, 3, 4, 5, 6]
print("Randomly selecting same number of a dice")
for i in range(5):
    random.seed(25)
    print(random.choice(dice))Code language: Python (python)

Exercise 10: Generate Random Date

Write a code to generate a random date between given start and end dates.

Given:

import random
import time

def getRandomDate(startDate, endDate ):
    # Your code here

print ("Random Date = ", getRandomDate("1/1/2016", "12/12/2018"))Code language: Python (python)

Show Solution

import random
import time

def getRandomDate(startDate, endDate ):
    print("Printing random date between", startDate, " and ", endDate)
    randomGenerator = random.random()
    dateFormat = '%m/%d/%Y'

    startTime = time.mktime(time.strptime(startDate, dateFormat))
    endTime = time.mktime(time.strptime(endDate, dateFormat))

    randomTime = startTime + randomGenerator * (endTime - startTime)
    randomDate = time.strftime(dateFormat, time.localtime(randomTime))
    return randomDate

print ("Random Date = ", getRandomDate("1/1/2016", "12/12/2018"))
Code language: Python (python)

Python Random Data Generation Exercise

Table of contents

Exercise 1: Generate 3 Random Integers

Exercise 2: Random Lottery Pick

Exercise 3: Generate 6 digit Random Secure OTP

Exercise 4: Pick Random Character

Exercise 5: Generate Random String

Exercise 6: Generate Random Password

Exercise 7: Calculate Multiplication

Exercise 8: Generate Random Token and URL

Exercise 9: Dice Roll

Exercise 10: Generate Random Date

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